On Fri, Nov 1, 2019 at 11:35 AM Programmingkid <programmingk...@gmail.com> wrote:
> > > On Oct 31, 2019, at 7:35 PM, qemu-devel-requ...@nongnu.org wrote: > > > > Message: 10 > > Date: Thu, 31 Oct 2019 18:39:11 -0000 > > From: John Canada <1850...@bugs.launchpad.net> > > To: qemu-devel@nongnu.org > > Subject: [Bug 1850570] Re: Cannot use usb-host on Mac OS > > Message-ID: > > <157254715118.3076.2379100780378521691.mal...@gac.canonical.com> > > Content-Type: text/plain; charset="utf-8" > > > > Yes, I tried running as root. I also tried it on a different computer > > that is running Mac OS 10.13, and it gave the same errors. > > > > -- > > You received this bug notification because you are a member of qemu- > > devel-ml, which is subscribed to QEMU. > > https://bugs.launchpad.net/bugs/1850570 > > > > Title: > > Cannot use usb-host on Mac OS > > > > Status in QEMU: > > New > > > > Bug description: > > Usb-host will not work on Mac OS 10.15. Qemu runs, though it gives > > these errors and the drive does not show up. Also, when Qemu is > > starting the drive ejects and remounts twice. Qemu built with > > ./configure --target-list=i386-softmmu,x86_64-softmmu --enable-sdl > > --disable-cocoa --enable-sdl-image. > > > > qemu-system-i386 image.qcow -usb -device usb-kbd -device > usb-host,vendorid=0x0781,productid=0x5571 > > libusb: error [darwin_claim_interface] USBInterfaceOpen: another > process has device opened for exclusive access > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] USBInterfaceOpen: another > process has device opened for exclusive access > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > libusb: error [darwin_claim_interface] interface not found > > > > To manage notifications about this bug go to: > > https://bugs.launchpad.net/qemu/+bug/1850570/+subscriptions > > > Try this. Unplug the USB device. Plug it back in, and as fast as you can > start QEMU. > > My theory is another program might be using the device. This could be > Spotlight trying to index the drive. > > Another possibility is libusb is not compatible with Mac OS 10.13 yet. > > Do you have another computer that runs Mac OS 10.12 or under that you can > test on? > > I guess the longstanding issue with libusb and OSX is that some kext has already claimed the device. A solution would be to unload the kext currently claiming the device before starting Qemu. If possible. Also see here: https://apple.stackexchange.com/questions/363491/how-to-disable-usb-mass-storage-in-mojave-to-free-up-device-for-libusb and the links from that page: https://github.com/libusb/libusb/wiki/FAQ#How_can_I_run_libusb_applications_under_Mac_OS_X_if_there_is_already_a_kernel_extension_installed_for_the_device https://stackoverflow.com/questions/33545656/codeless-kext-for-usb-storage-device Best, Howard
